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根据断裂力学和损伤力学的理论和方法，用岩体宏观损伤张量和岩体损伤应变分析了裂隙体对岩体应力、应变的影响。通过岩体宏观裂隙的断裂扩展研究，建立岩体损伤演化方程，对地下硐室稳定性进行有限元数值计算，分析讨论了裂隙损伤对稳定性的影响
According to the theories and methods of fracture mechanics and damage mechanics, the influence of fissure body on the stress and strain of rock mass is analyzed by the macroscopic damage tensor of rock mass and the damage of rock mass. Through the study of the fracture propagation of macroscopic fissures in rock mass, the damage evolution equation of rock mass is established and the stability of underground chamber is calculated by finite element method. The influence of fissure damage on stability is analyzed and discussed